Tele-Graffiti: A Camera-Projector Based Remote Sketching System with Hand-Based User Interface and Automatic Session Summarization
Abstract
One way to build a remote sketching system is to use a video camera to image what each user draws at their site, transmit the video to the other sites, and display it there using an LCD projector. Such camera-projector based remote sketching systems date back to Paul Wellner's (largely unimplemented) Xerox Double DigitalDesk. To make such a system usable, however, the users have to be able to move the paper on which they are drawing, they have to be able to interact with the system using a convenient interface, and sketching sessions must be stored in a compact format so that they can be replayed later. We have recently developed Tele-Graffiti, a remote sketching system with the following three features: (1) real-time paper tracking to allow the users to move their paper during system operation, (2) a hand based user interface, and (3) automatic session summarization and playback. In this paper, we describe the design, implementation, and performance of Tele-Graffiti.
BibTeX
@article{Takao-2003-8690,author = {Naoya Takao and Jianbo Shi and Simon Baker},
title = {Tele-Graffiti: A Camera-Projector Based Remote Sketching System with Hand-Based User Interface and Automatic Session Summarization},
journal = {International Journal of Computer Vision},
year = {2003},
month = {July},
volume = {53},
number = {2},
pages = {115 - 133},
keywords = {Camera-projector based remote sketching systems, remote communicationand collaboration, video compression and transmission, paper detectionand tracking, hand-based user interfaces, automatic summarization,archiving, and playback.},
}